The Legoland theme park has depoloyed tracker bracelets for kiddees based on WiFi tracking tag from Bluesoft.
Available for rent in the Information Office, a Kidspotter ensures that parents can always find their children whenever necessary. On entering the park, the wristband is placed on the child’s arm. If parents lose sight of their child, they can send an SMS message to the Kidspotter system during their entire visit. They will then automatically receive a return message stating the name of the park area and the map coordinate of their child’s position in the park. On their special Kidspotter map of the park, parents can easily see where to find their child. The Kidspotter kit consists of a small wristband with a tiny sender, plus a special Kidspotter map of the park.
(via /.)